Code Chef October Cook of challenge Problem 1 and Problem 2 solution

Codeforces Round #677 (Div. 3) (2h)
starts in 23h 43m

Технокубок 2021 - Ознакомительный Раунд 1 (48h)
starts in 3d 19h 13m

SRM 792 (2h)
starts in 3d 20h 8m

Codeforces Round #678 (Div. 2) (2h)
starts in 4d 23h 13m

Codeforces Round #679 (Div. 2, based on Technocup 2021 Elimination Round 1) (2h)
starts in 5d 20h 13m

Codeforces Round #679 (Div. 1, based on Technocup 2021 Elimination Round 1) (2h)
starts in 5d 20h 13m

Technocup 2021 - Elimination Round 1 (2h)
starts in 5d 20h 13m

And other 1 scheduled in the next 2 weeks...

This contest is kind of Codechef Long, if you want to participate and learn Try this

https://www.hackerearth.com/challenges/competitive/october-circuits-20/problems/

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https://t.me/competitiveProgrammingDiscussion

I've been receiving many messages about how to practice and improve in competitive programming, in this post I will share some tips that helped me a lot to improve and become a Candidate Master on Codeforces.

- The most important thing, Separate thinking from coding.. think on paper NOT on PC, don't start coding till you are sure of your idea.

- Participate in official contests and ALWAYS upsolve 1 or 2 problems that you couldn't solve during the contest.

- A tip that helped me improve faster, don't spend days on problems.. just think in it for 30 - 45 minutes then go ahead and read the tutorial.. It doesn't matter whether you could solve it by yourself or had to read the tutorial, the most important thing is that you thought about the problem for 30 - 45 minutes before reading the tutorial.

- When you decide to read the tutorial, don't read it all at once, read 1 - 2 lines then think for a while before continuing reading.. Those 1 - 2 lines can call your attention to something you weren't aware of.

- Solve problems that are slightly above your level. Measure your progress every 20 problems, if you were able to solve 70% by yourself then you should increase the difficulty (I use Codeforces difficulty tags to practice).

Contest Watcher, [24.10.20 14:08]
Codeforces Round #678 (Div. 2) (2h)
starts in 5h 27m

Technocup 2021 - Elimination Round 1 (2h)
starts in 1d 2h 27m

Codeforces Round #679 (Div. 2, based on Technocup 2021 Elimination Round 1) (2h)
starts in 1d 2h 27m

Codeforces Round #679 (Div. 1, based on Technocup 2021 Elimination Round 1) (2h)
starts in 1d 2h 27m

Educational Codeforces Round 97 (Rated for Div. 2) (2h)
starts in 3d 5h 57m

October Lunchtime 2020 (3h)
starts in 7d 5h 22m

SRM 793 (2h)
starts in 11d 17h 22m

And other 2 scheduled in the next 2 weeks...

https://cses.fi/problemset/task/1619/
try this question

Link http://codeforces.com/contests/1436